* returns a {@link FluentIterable} of elements of an anonymous type whose supertypes are the <a
   * href="https://docs.oracle.com/javase/specs/jls/se25/html/jls-4.html#jls-4.9">intersection</a>
   * of the supertypes of {@code A} and the supertypes of {@code B}.
   */
  public void testConcatIntersectionType() {
    Iterable<A> aIterable = ImmutableList.of();

/// info | Info

Wenn Sie bereits das ganze Tutorial durchgearbeitet haben und mehr über Typen erfahren wollen, dann ist eine gute Ressource [der „Cheat Sheet“ von `mypy`](https://mypy.readthedocs.io/en/latest/cheat_sheet_py3.html).

Weitere Informationen finden Sie in der [PyJWT-Installationsdokumentation](https://pyjwt.readthedocs.io/en/latest/installation.html).

///

## Passwort-Hashing { #password-hashing }

„Hashing“ bedeutet: Konvertieren eines Inhalts (in diesem Fall eines Passworts) in eine Folge von Bytes (ein schlichter String), die wie Kauderwelsch aussieht.

Puedes leer más al respecto en la [documentación de instalación de PyJWT](https://pyjwt.readthedocs.io/en/latest/installation.html).

///

## Hashing de contraseñas { #password-hashing }

"Hacer hashing" significa convertir algún contenido (una contraseña en este caso) en una secuencia de bytes (solo un string) que parece un galimatías.

	//    The canonical user ID is the Amazon S3–only concept.
	//    It is 64-character obfuscated version of the account ID.
	// ```
	// http://docs.aws.amazon.com/AmazonS3/latest/dev/example-walkthroughs-managing-access-example4.html
	globalMinioDefaultOwnerID      = "02d6176db174dc93cb1b899f7c6078f08654445fe8cf1b6ce98d8855f66bdbf4"
	globalMinioDefaultStorageClass = "STANDARD"
	globalWindowsOSName            = "windows"

 * on what responses can be stored, and which requests can be satisfied by those stored responses.
 *
 * See [RFC 7234, 5.2](https://tools.ietf.org/html/rfc7234#section-5.2).
 */
class CacheControl internal constructor(
  /**
   * In a response, this field's name "no-cache" is misleading. It doesn't prevent us from caching

## `Union` 或 `anyOf` { #union-or-anyof }

你可以將回應宣告為多個型別的 `Union`，表示回應可能是其中任一型別。

在 OpenAPI 中會以 `anyOf` 定義。

要達成這點，使用標準的 Python 型別提示 [`typing.Union`](https://docs.python.org/3/library/typing.html#typing.Union)：

/// note

在定義 [`Union`](https://docs.pydantic.dev/latest/concepts/types/#unions) 時，請先放置「更具體」的型別，再放「較不具體」的型別。以下範例中，較具體的 `PlaneItem` 置於 `CarItem` 之前：`Union[PlaneItem, CarItem]`。

///

///

### JSON Schema’nın `examples` alanı { #json-schemas-examples-field }

Sonrasında JSON Schema, spesifikasyonun yeni bir sürümüne [`examples`](https://json-schema.org/draft/2019-09/json-schema-validation.html#rfc.section.9.5) alanını ekledi.

Ardından yeni OpenAPI 3.1.0, bu yeni `examples` alanını içeren en güncel sürümü (JSON Schema 2020-12) temel aldı.

constraints.ParametersScriptAssert.message = "{script}" betik ifadesi doğru değil.
constraints.Range.message = {item}, {min} ile {max} arasında olmalıdır.
constraints.SafeHtml.message = {item} güvenli olmayan HTML içeriği içeriyor.
constraints.ScriptAssert.message = "{script}" betik ifadesi doğru değil.
constraints.URL.message = {item} geçerli bir URL değildir.
constraints.Required.message = {item} gereklidir.

```Python hl_lines="3"
import os

name = os.getenv("MY_NAME", "World")
print(f"Hello {name} from Python")
```

/// tip | Dica

O segundo argumento para [`os.getenv()`](https://docs.python.org/3.8/library/os.html#os.getenv) é o valor padrão a ser retornado.

Se não for fornecido, é `None` por padrão, Aqui fornecemos `"World"` como o valor padrão a ser usado.

///

Então você poderia chamar esse programa Python: